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init.go
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init.go
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package chain
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"github.com/imdario/mergo"
"github.com/tendermint/starport/starport/chainconfig"
chaincmdrunner "github.com/tendermint/starport/starport/pkg/chaincmd/runner"
"github.com/tendermint/starport/starport/pkg/confile"
)
const (
moniker = "mynode"
)
// Init initializes the chain and applies all optional configurations.
func (c *Chain) Init(ctx context.Context, initAccounts bool) error {
conf, err := c.Config()
if err != nil {
return &CannotBuildAppError{err}
}
if err := c.InitChain(ctx); err != nil {
return err
}
if initAccounts {
return c.InitAccounts(ctx, conf)
}
return nil
}
// InitChain initializes the chain.
func (c *Chain) InitChain(ctx context.Context) error {
chainID, err := c.ID()
if err != nil {
return err
}
conf, err := c.Config()
if err != nil {
return err
}
// cleanup persistent data from previous `serve`.
home, err := c.Home()
if err != nil {
return err
}
if err := os.RemoveAll(home); err != nil {
return err
}
commands, err := c.Commands(ctx)
if err != nil {
return err
}
// init node.
if err := commands.Init(ctx, moniker); err != nil {
return err
}
// overwrite configuration changes from Starport's config.yml to
// over app's sdk configs.
if err := c.plugin.Configure(home, conf); err != nil {
return err
}
// make sure that chain id given during chain.New() has the most priority.
if conf.Genesis != nil {
conf.Genesis["chain_id"] = chainID
}
// Initilize app config
genesisPath, err := c.GenesisPath()
if err != nil {
return err
}
appTOMLPath, err := c.AppTOMLPath()
if err != nil {
return err
}
clientTOMLPath, err := c.ClientTOMLPath()
if err != nil {
return err
}
configTOMLPath, err := c.ConfigTOMLPath()
if err != nil {
return err
}
appconfigs := []struct {
ec confile.EncodingCreator
path string
changes map[string]interface{}
}{
{confile.DefaultJSONEncodingCreator, genesisPath, conf.Genesis},
{confile.DefaultTOMLEncodingCreator, appTOMLPath, conf.Init.App},
{confile.DefaultTOMLEncodingCreator, clientTOMLPath, conf.Init.Client},
{confile.DefaultTOMLEncodingCreator, configTOMLPath, conf.Init.Config},
}
for _, ac := range appconfigs {
cf := confile.New(ac.ec, ac.path)
var conf map[string]interface{}
if err := cf.Load(&conf); err != nil {
return err
}
if err := mergo.Merge(&conf, ac.changes, mergo.WithOverride); err != nil {
return err
}
if err := cf.Save(conf); err != nil {
return err
}
}
return nil
}
// InitAccounts initializes the chain accounts and creates validator gentxs
func (c *Chain) InitAccounts(ctx context.Context, conf chainconfig.Config) error {
commands, err := c.Commands(ctx)
if err != nil {
return err
}
// add accounts from config into genesis
for _, account := range conf.Accounts {
var generatedAccount chaincmdrunner.Account
accountAddress := account.Address
// If the account doesn't provide an address, we create one
if accountAddress == "" {
generatedAccount, err = commands.AddAccount(ctx, account.Name, account.Mnemonic, account.CoinType)
if err != nil {
return err
}
accountAddress = generatedAccount.Address
}
coins := strings.Join(account.Coins, ",")
if err := commands.AddGenesisAccount(ctx, accountAddress, coins); err != nil {
return err
}
if account.Address == "" {
fmt.Fprintf(
c.stdLog().out,
"🙂 Created account %q with address %q with mnemonic: %q\n",
generatedAccount.Name,
generatedAccount.Address,
generatedAccount.Mnemonic,
)
} else {
fmt.Fprintf(
c.stdLog().out,
"🙂 Imported an account %q with address: %q\n",
account.Name,
account.Address,
)
}
}
_, err = c.IssueGentx(ctx, Validator{
Name: conf.Validator.Name,
StakingAmount: conf.Validator.Staked,
})
return err
}
// IssueGentx generates a gentx from the validator information in chain config and import it in the chain genesis
func (c Chain) IssueGentx(ctx context.Context, v Validator) (string, error) {
commands, err := c.Commands(ctx)
if err != nil {
return "", err
}
// create the gentx from the validator from the config
gentxPath, err := c.plugin.Gentx(ctx, commands, v)
if err != nil {
return "", err
}
// import the gentx into the genesis
return gentxPath, commands.CollectGentxs(ctx)
}
// IsInitialized checks if the chain is initialized
// the check is performed by checking if the gentx dir exist in the config
func (c *Chain) IsInitialized() (bool, error) {
home, err := c.Home()
if err != nil {
return false, err
}
gentxDir := filepath.Join(home, "config", "gentx")
if _, err := os.Stat(gentxDir); os.IsNotExist(err) {
return false, nil
}
if err != nil {
// Return error on other error
return false, err
}
return true, nil
}
type Validator struct {
Name string
Moniker string
StakingAmount string
CommissionRate string
CommissionMaxRate string
CommissionMaxChangeRate string
MinSelfDelegation string
GasPrices string
Details string
Identity string
Website string
SecurityContact string
}
// Account represents an account in the chain.
type Account struct {
Name string
Address string
Mnemonic string `json:"mnemonic"`
CoinType string
Coins string
}